Definition of a Knowledge Representation Based on Functional CAD Models
Year: 2009
Editor: Norell Bergendahl, M.; Grimheden, M.; Leifer, L.; Skogstad, P.; Lindemann, U.
Author: Bluntzer, Jean-Bernard; Gomes, Samuel; Sagot, Jean-Claude
Series: ICED
Section: Design Information and Knowledge
Page(s): 111-122
Abstract
How to merge the users' requirements into a complete design process has now become a reality. That is so in the automotive industry, from vehicle styling to specific facilities in connection with lifestyle evolution. Included in a globalizing lower cost approach, such requirements need to be processed quickly without impacting on the product robustness. In order to answer these needs, this paper proposes a specific design method in order to reduce the time dedicated to routine engineering. This method is directly integrated into our self-developed PLM system in order to work in a worldwide and collaborative design environment. The main objective of our methodology is to define the CAD model geometry according to the modifications and the customer needs. In order to manage such control, we can identify functional parameters and functional rules through the functional requirements and the input constraints. Moreover, we can extract the specific parameters and the specific rules from the older CAD models stored in the PDM system from the previous and validated project in order to create a new kind of knowledge and using it as an input for our Case-Based Reasoning process.
Keywords: Case-Based Reasoning, Routine Engineering, PLM, CAD modelling, Knowledge-Based Engineering